工程流体力学(英文版)简介.pdf

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3 Research Method of Fluid Mechanics
Theoretical Research Method Experimental Research Method Computational Research Method
Theoretical Fluid Mechanics Experimental Fluid Mechanics Computational Fluid Mechanics
Development and Application of Fluid Mechanics
2
The Fourth Satge
(Middle 20th century-)
Two key points:
• Turbulence , Vortex flow • Applications: and unsteady
hydraulic engineering, civil engineering, communication transportation, machinery manufacture, petrol exploitation, chemical engineering and biological engineering
1. To study the principles of the statics and motion of liquids and gases. 2. To study the action of solid on fluid. 3. To study the applications of these principles.
Development and Application of Fluid Mechanics
2
The Third Satge
(20th century)
• In 1902, Kutta Princple • In 1904, Prandtl boundary layer theory • In 1910-1945, aerodynamics theories and experiments • In 1912, Karman Vortex street • In 1921, Momentum Integral Equation • In 1954, Theory of turbulent flow
Application:
Avation and navigation Engineering
Application:
hydraulic structure water
Application:
ocean engineering,
Application:
mechanical engineering
1 Concept of Engineering Fluid Mechanics What is Fluid? liquids gases solid What is Fluid Mechanics?
Fluid Mechanics is a branch of Applied (macro-) Mechanics:
10% 10% 60% 20%
Test: 20%+10%+10%+60%
5 References:
3. 4. 5. 6. Frank M. White, Fluid Mechanics, Mcgraw-Hill, New York, 2003. John A. Roberson and C. T. Crowe, Engineering Fluid Mechanics, Mcgraw-Hill, New York, 1997.
Science and Technology University of Beijing
Engineering Fluid Mechanics
(
:
: : 1215B liuxj@me.ustb.edu.cn
Preface
1 Concept of Fluid Mechanics 2 Development and Application of Fluid Mechanics 3 Research Method of Fluid Mechanics 3 Contents 5 Reference
)
)
) )
Dimensional Analysis and Similitude(
(6) One-dimensional Compressible Gas Flow
4 Contents
1 2 3 4 5 6 7 8 Basic Concepts and Properties of Fluid Mechanics Fluid Statics Basic Concepts and Equation of Fluid in Motion Viscous Flow in Pipes Rotational and Irrotational Ideal Flow Viscous Flow Over Body Surfaces Dimensional Analysis and Similitude One-dimensional Compressible Gas Flow
• Water Wheel
Development and Application of Fluid Mechanics
2
The Second Satge
(17-19th century)
• In 1647, Pascal statics Principle • In 1678, Newtonian Stress equation • In 1738, Bernoulli Equation • In 1775, Euler built basic equation of ideal fluid • In 1781, Lagrange advanced stream function • In 1826, N-S equation. • In 1876, Reynolds found : laminar flow and turbulent flow. • In 1858, Helmolholz theory of motion vortex. • in 1887, Separation theory of flow around body • In the end of 19th century, the theory of similarity
4 Contents
Newton’s 2nd motion law: F = ma
(1) (2) (3) (4) (5)
Basic Concepts and Properties of Fluid Mechanics Fluid Statics ( Fluid Kinematics( Fluid Dynamics (
Fluid
Engineering Fluid Mechanics
Development and Application of Fluid Mechanics
1
The First Satge
(before 17th century)
• (256 BC) Dujiang weir conservancy project • (250 BC) Archimedes Principle • Clepsydra • Sail windmill
road and bridge engineering
Application:
conservancy engineering
urban flood and prevention
chemical en源自文库ineering
Automobile
power station; metallurgy engineering,